Patent classifications
H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
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61/00
Gas-discharge or vapour-discharge lamps
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H01J61/38
Devices for influencing the colour or wavelength of the light
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H01J61/42
by transforming the wavelength of the light by luminescence
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H01J61/44
Devices characterised by the luminescent material
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